2731015273 has 4 divisors (see below), whose sum is σ = 3121160320. Its totient is φ = 2340870228.

The previous prime is 2731015253. The next prime is 2731015283. The reversal of 2731015273 is 3725101372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2731015273 - 2²⁵ = 2697460841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731015253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195072513 + ... + 195072526.

It is an arithmetic number, because the mean of its divisors is an integer number (780290080).

Almost surely, 2^2731015273 is an apocalyptic number.

It is an amenable number.

2731015273 is a deficient number, since it is larger than the sum of its proper divisors (390145047).

2731015273 is an equidigital number, since it uses as much as digits as its factorization.

2731015273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390145046.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 2731015273 is about 52259.1166496335. The cubic root of 2731015273 is about 1397.7882206727.

The spelling of 2731015273 in words is "two billion, seven hundred thirty-one million, fifteen thousand, two hundred seventy-three".